Research Community

 View Only
last person joined: yesterday 

This community is a way for Research Professionals (Academic, Industry, and Government) who are active within the Materials Protection and Performance industries to connect with peers globally and further the engagement and participation within the AMPP Research Program.
  • 1.  Accelerated Corrosion?

    Posted 06-05-2025 09:30 AM

    Dear all,

    I have recently joined this research community as I work for the European Marine Energy Centre.

    We are a not-for-proft R&D organisation, supporting the commercialisation of wave and tidal energy through real-world testing on our special purpose sites. We are based in the Orkney Islands, an archipelago region to the north of Scotland, UK. We have significant interest (typically) in preventing corrosion and have followed guidelines and principles published by the AMPP previously, in support of reducing the failure rate for marine energy converters that are deployed at our site. In addition, we have followed guidelines for the production of hydrogen. Our hydrogen site is located on the Isle of Eday and the environment here is particularly corrosive. The air is concentrated with seasalt and high winds blow sand and other debris onto the site, creating issues with ensuring piping for green hydrogen production is air-tight and proofed against embrittlement.

    My question however, is more based on reversing the principles of protection. We are interested in exploring "accelerating" corrosion, for subsea assets that are no longer required. Currently, there is a growing number of assets being deployed subsea, for offshore wind, oil and gas, and increasingly - marine energy. EMEC are interested in understanding how these assets can be removed at speed, using a battery-induced current making decommisioning more efficient and environmentall acceptable. I was hoping to gauge interest in reverse engineering your expertise, to see if there was any cutting edge science in this area?

    Feel free to add comments to this thread if you are aware of any related activities, or additionally, feel free to get in contact on the details below!



    ------------------------------
    --------------------------------------

    George Colcomb (he/him)

    Commercial Officer

    European Marine Energy Centre (EMEC) Ltd

    +44 (0)1856 852232

    George.Colcomb@emec.org.uk



    ------------------------------


  • 2.  RE: Accelerated Corrosion?

    Posted 06-05-2025 11:42 AM

    Hello, George!

     

    Using electricity to accelerate corrosion is a technique which has been around for quite awhile. I first recall seeing it in person at the US Naval Surface Warfare Center (White Oak) in 1991. I recently found out that the Concrete Bridge Engineering Institute at the University of Texas is using the technique on steel reinforced concrete.

     

    A quick Googling indicates the technique is commonly used to accelerate corrosion of steel reinforced concrete.

     

    I do question whether this would generally be a net environmental benefit. Underwater structures frequently act as an artificial reef and support a web of sealife. You would also be accelerating the amount of metal being dissolved in the seawater, possibly creating locally toxic concentrations either directly or indirectly via something like an algae bloom.

     






  • 3.  RE: Accelerated Corrosion?

    Posted 26 days ago

    Hi Thomas,

    Thank you very much for your comments. 

    I am glad to see that the technique has been used before. I think we are aligned to the view that this could be detrimental to aquatic life. For the purposes of R+D, it would be interesting to understand and model the effects, specifically on smaller installations - for example where devices have been moored to the seabed, as opposed to large scale developments such as offshore wind monopiles or oil and gas assets.



    ------------------------------
    George Colcomb
    ------------------------------